Scientific Publications

Integrated analysis of protein composition, tissue diversity, and gene regulation in mouse mitochondria

Publication TypeJournal Article
AuthorsMootha, Vamsi K., Bunkenborg Jakob, Olsen Jesper V., Hjerrild Majbrit, Wisniewski Jacek R., Stahl Erich, Bolouri Marjan S., Ray Heta N., Sihag Smita, Kamal Michael, Patterson Nick, Lander Eric S., and Mann Matthias
AbstractMitochondria are tailored to meet the metabolic and signaling needs of each cell. To explore its molecular composition, we performed a proteomic survey of mitochondria from mouse brain, heart, kidney, and liver and combined the results with existing gene annotations to produce a list of 591 mitochondrial proteins, including 163 proteins not previously associated with this organelle. The protein expression data were largely concordant with large-scale surveys of RNA abundance and both measures indicate tissue-specific differences in organelle composition. RNA expression profiles across tissues revealed networks of mitochondrial genes that share functional and regulatory mechanisms. We also determined a larger "neighborhood" of genes whose expression is closely correlated to the mitochondrial genes. The combined analysis identifies specific genes of biological interest, such as candidates for mtDNA repair enzymes, offers new insights into the biogenesis and ancestry of mammalian mitochondria, and provides a framework for understanding the organelle's contribution to human disease.
Year of Publication2003
JournalCell
Volume115
Issue5
Pages629 - 40
Date Published (YYYY/MM/DD)2003/11/26/
ISBN Number0092-8674
KeywordsAnimals, Cancer, Cell Line, Cell Respiration, DNA, DNA Fingerprinting, Enzymologic, Gene Expression Regulation, Humans, Male, Messenger, Mice, Mitochondria, Mitochondrial, Mitochondrial Proteins, Oxidative Phosphorylation, Proteomics, RNA